GMW 8518-2002 Global Squeak and Rattle Test Evaluation Vehicle Level

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1、TestProcedureRoadGMW8518GlobalSqueakandRattleTest/EvaluationVehicleLevel1IntroductionKeepinmindthatnotallvehiclesoundsareconsid-eredundesirable,somesoundsaredesignedintove-1.1Purpose.Toimplementaworldwideuniformhiclesandtheircomponents.Forexample,aclickprocessforevaluatingandvalidatingtheSqueaka

2、ndwhenapowerdoorlockiscycledcanreassuretheRattleperformanceofacompletevehicleduringthecustomerthatthefunctionhasbeenaccomplished.developmentandvalidationphase.ThisincludestheSqueakandrattledegradationtestingisnotspeci-detection,theevaluation(bysubjectiveratingofS&Rfiedinthisprocedure.RefertotheV

3、ehicleTechni-complaints),aswellastherootsourceanalysisascalSpecification(VTS)forvehicledegradationperfor-farasitispossibleatthevehicle.Furthermorethemance.Thisprocedurecanbeappliedtovehiclesun-documentationofS&RcomplaintsandtheresultsofdergoingcorporatedurabilitytestingorVehicleDegra-therootsour

4、ceanalysisaredescribedforinitiationdationTest:GMW7879TP.oftheproblemresolution.TheprocedureconsistsofaQuasi-Staticevaluation,adynamicevaluation1.3Applicability.Forallpassengercarsandlightandinfotainmentsystemexcitation(Reference:commercialvehicles.GMW7699TP-SqueakandRattleEvaluation-Enter-tainme

5、ntSystemDrivenSqueak&RattleTesting).1.4Definitions.Thisprocedurealsoprovidesdetailedinstructionsfortemperatureevaluations(hot/coldweathertestorS&R-Noise:Disturbingorannoyingnoisesexcitedwithdynamicorstaticinputs,fromdrivingorroadsim-usingenvironmentalroadsimulators).ulator.Furthermore,noiseswhic

6、hoccurinadditiontonormaloperatingnoiseswhileoperatingvehiclecom-1.2Foreword.Thefollowingisagenerictestsched-ponents.Thismeansallnoiseswhichareavoidableulewhichutilizesstaticevaluations,thedynamictestandwhichcustomersdonotexpect.roadsattherespectiveregionalprovinggrounds(seeAppendixBandC),andther

7、oadsimulatorstopro-Quasi-Staticisusedtorefertothecustomeractu-videinputsthatexcitesqueaksandrattlesinvehicles.atedoperationsintheQuasi-StaticScheduleCheck-Thisprocedurewillguideanevaluatorinathoroughlist,eventhoughthevehicle